Chord sequence
Fm7 E7 E♭m7 A♭7 D♭m7 G♭7 A♭maj7
In every key
Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.
Heard in Ab major
Chords 3 to 6
Ebm7 Ab7 Dbm7 Gb7
Chords 5 to 7
Dbm7 Gb7 Abmaj7
Over Fm7 · vi7
Mode 6 of Major
Over E7 · subV7/v
Mode 4 of Melodic Minor
Over Ebm7 · ii7/iv
Mode 2 of Major
Over Ab7 · V7/iv
Mode 5 of Melodic Minor
Over Dbm7 · iv7
Over Gb7 · ♭VII7
Over Abmaj7 · Imaj7
The major scale and its modes are the most commonly used scales in western music.